[test-release] Build BOLT by default for x86/arm

[rafauler]

Summary

Make BOLT build by default in X86 and AArch64 Linux boxes.

[thieta]

looks fine with a small comment.

llvm/utils/release/test-release.sh

54

why not x86_64 | arm64 | aarch64 instead of two lines?

[xbolva00]

Great, thanks

[xbolva00]

llvm/utils/release/test-release.sh

14–15

Move Machine here?

[rafauler]

Implement suggestions

llvm/utils/release/test-release.sh

 #!/usr/bin/env bash
 #===-- test-release.sh - Test the LLVM release candidates ------------------===#
 #
 # Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 # See https://llvm.org/LICENSE.txt for license information.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 #
 #===------------------------------------------------------------------------===#
 #
 # Download, build, and test the release candidate for an LLVM release.
 #
 #===------------------------------------------------------------------------===#
 
 System=`uname -s`
+Machine=`uname -m`
 if [ "$System" = "FreeBSD" ]; then
     MAKE=gmake
 else
     MAKE=make
 fi
 generator="Unix Makefiles"
 
 Release=""
 Release_no_dot=""
 RC=""
 Triple=""
 use_gzip="no"
 do_checkout="yes"
 do_debug="no"
 do_asserts="no"
 do_compare="yes"
 do_rt="yes"
 do_clang_tools="yes"
 do_libs="yes"
 do_libcxxabi="yes"
 do_libunwind="yes"
 do_test_suite="yes"
 do_openmp="yes"
-do_bolt="no"
 do_lld="yes"
 do_lldb="yes"
 do_polly="yes"
 do_mlir="yes"
 do_flang="yes"
 do_silent_log="no"
 BuildDir="`pwd`"
 ExtraConfigureFlags=""
 ExportBranch=""
 git_ref=""
 
+do_bolt="no"
+if [ "$System" = "Linux" ]; then
+    case $Machine in
+        x86_64 | arm64 | aarch64 )
+            do_bolt="yes"
+            ;;
+    esac
+fi
+
 function usage() {
     echo "usage: `basename $0` -release X.Y.Z -rc NUM [OPTIONS]"
     echo ""
     echo " -release X.Y.Z       The release version to test."
     echo " -rc NUM              The pre-release candidate number."
     echo " -final               The final release candidate."
     echo " -triple TRIPLE       The target triple for this machine."
     echo " -j NUM               Number of compile jobs to run. [default: 3]"